70 charger wont start help please.

[davek]

ok 70 charger 318 It was starting but no go. Starter relay has power on main post ,neutral brown wire has ground,

no power on Key line-yellow wire. I tried jumping posts on relay to check starter 1 click so pulled starter and tested it and it engaged 3 times. I have power to amp meter both sides.I have 4 ways.Power on ignition plug on steering column. I have extra 70 steering column so I laid it the charger grounded it and plugged both connectors and would not start,4 ways worked on that column so has power. I thought if you jump post on starter relay it will turn starter over. Could starter be bad even if it engages out of car? Also what else do I check for power on yellow wire. Both Ignition keys cant be bad.

 

[davek]

note bought new starter relay

 

[Beekeeper]

Dave,
if you jumped the red wire from battery to brown wire to starter solenoid and just got a click I would check to make sure the ground to the starter has a very low resistance connection. Also make sure your positive from battery to starter has a good low resistance connection on both ends and also check the resistance of the positive cable end to end. Next check your battery ground cable connections and the resistance on the ground cable end to end it sounds like a bad connection on one of those cables.
Do you get voltage from the ignition switch to the yellow wire at the start relay?

 

[PlymCrazy]

If jumping the solenoid isn’t doing anything then…

From what you’re describing it sounds like the issue is between either solenoid & starter OR ground & starter.

 

[davek]

Dave,
if you jumped the red wire from battery to brown wire to starter solenoid and just got a click I would check to make sure the ground to the starter has a very low resistance connection. Also make sure your positive from battery to starter has a good low resistance connection on both ends and also check the resistance of the positive cable end to end. Next check your battery ground cable connections and the resistance on the ground cable end to end it sounds like a bad connection on one of those cables.
Do you get voltage from the ignition switch to the yellow wire at the start relay?

no power to the starter relay when I turn the key on. I only used my test light. I guess I should use my volt meter to see If I get anything. Im using a battery charger when trying to start the car. Been starting for the last week no problems then nothing.

 

[davek]

If jumping the solenoid isn’t doing anything then…

From what you’re describing it sounds like the issue is between either solenoid & starter OR ground & starter.

yellow wire should go hot when you turn the key on. That tells the starter relay to juice the starter.

 

[Geoff 2]

Logic.
Most likely failure point is the NSS, or it's adjustment.
Make sure the trans in N or P. Where the NSS wire connects to the starter relay: ground that terminal & see if the engine cranks/starts.

 

[SatelliteOfLove]

Question -
NSS is just a ground connection ?

 

[Geoff 2]

NSS = neutral safety switch. In N or P, this switch provides a ground for the starter relay, so that the starter will crank.

 

[kiwigtx]

NSS = neutral safety switch. In N or P, this switch provides a ground for the starter relay, so that the starter will crank.

....for the layman.....the NSS provides a path from the solenoid coil to the ground metalwork of the body via its switch contacts when the transmission is in Neutral OR Park........and the same applies in a 4-speed car - path is via the clutch pedal switch when the clutch pedal is depressed.

 

[hunt2elk]

and the same applies in a 4-speed car - path is via the clutch pedal switch when the clutch pedal is depressed.

Only on 1970 and newer models though....

 

[Beekeeper]

He stated in his initial post that ground was present through the NSS.

 

[LowBikeMike]

No power on Yellow wire with Key On or with the Key in Crank position?

 

[RemCharger]

Yellow only gets power in crank position

 

[Beekeeper]

You can bypass the NSS and use a jumper from the terminal to a good ground.

 

[PlymCrazy]

yellow wire should go hot when you turn the key on. That tells the starter relay to juice the starter.

From your original post, it sounded like the starter did nothing when jumping the relay. In which case I'd be looking for an issue after the relay. If that's indeed still the case, then no power to the relay itself with key on would indicate yet another issue. I'd work on things one at a time here Dave.

 

[72RoadrunnerGTX]

.... Im using a battery charger when trying to start the car....

In place of a battery or in addition to a battery being present?

 

[Derwud]

Sounds like a bad Battery Cable.

 

[davek]

In place of a battery or in addition to a battery being present?

using both

 

[davek]

going to check cables and go from there.